Members of Rainbow Alliance painted the Rock today to advertise for John Cameron Mitchell’s speech tonight. The NU alum/award-winning actor, writer, producer and director will speak about his life experiences, being out in the entertainment industry, and themes of gender and sexuality in his cult-classic films “Hedwig and the Angry Inch” and “Shortbus.”

Mitchell will speak at 8 p.m. tonight in the McCormick Auditorium in Norris.